Finding the Fourth Proportional to 57,219,106.98, 78,962,778.41 and 31,113,437.75
Calculator
Solution
The fourth proportional to 57,219,106.98, 78,962,778.41 and 31,113,437.75 is: 42,936,767.45
Step by Step Solution
- Step 1: Write the proportion equation
57,219,106.98 : 78,962,778.41 = 31,113,437.75 : x - Step 2: Convert to fraction form
57,219,106.98/78,962,778.41 = 31,113,437.75/x - Step 3: Cross multiply
57,219,106.98x = 78,962,778.41 × 31,113,437.75 - Step 4: Simplify right side
57,219,106.98x = 2,456,803,490,076,198 - Step 5: Solve for x
x = 2,456,803,490,076,198/57,219,106.98 - Step 6: Final answer
x = 42,936,767.45
Related Problems
Find fourth proportional to 28,609,553.49, 39,481,389.20 and 15,556,718.87
Half scale
Find fourth proportional to 114,438,213.96, 157,925,556.81 and 62,226,875.49
Double scale
Find fourth proportional to 57,219,107.98, 78,962,779.79 and 31,113,438.75
Similar ratio
Find fourth proportional to 85,828,660.47, 118,444,167.61 and 46,670,156.62
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.